The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The solar system is the name we use to describe the ... Water and gasses, including a gas called methane, make up its surface. It takes Uranus 84 Earth years to orbit the sun.

Two exciting new studies detail the life-supporting contents of a 4.3-ounce sample of the asteroid Bennu. The OSIRIS-REx ...

If everything in our solar system formed from the same solar nebula, why do the planets have different compositions? Herbert WichTitusville, Florida To better understand why the planets have variable ...

It is a huge ball of burning gas made mostly of hydrogen. The Sun makes up 99% of all the mass in the Solar System; that means if you put together everything else in the Solar System, the Sun ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...

Discover the fascinating findings from asteroid Bennu: pristine salt minerals reveal the presence of liquid water in the ...

Solar inverters are a necessary but often forgotten part of a home solar panel system since they convert sunlight into usable electricity for your home appliances. Without a solar inverter ...

The building blocks of life could have been delivered to solar system dwarf planet Ceres by one or more space rocks from the outer asteroid belt. NASA OSIRIS-REx asteroid sample return team has ...